This problem analysis summarizes the influence of range practices on water-borne disease organisms in surface water within watersheds. The summary is based on literature reviews, case histories, and interviews. Information for the literature review was obtained primarily from scientific journals, and includes reviews and original studies. The disease-causing organisms Giardia lamblia (causing giardiasis) and Cryptosporidium parvum (causing cryptosporidiosis) are emphasized because of their importance in British Columbia.
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Updated May 17, 2007